Are hard tension strings (around 85 lbs total tension) generally safe for classical guitars without truss rod? - Music: Practice & Theory Stack Exchange
Nylon Classic Guitar Strings 1 set of normal tension strings | eBay
Martin M160 Silverplated Ball End High Tension Classical Guitar Strings 729789101608 | eBay
Alice Classical Guitar Strings AC130 Spanish Normal or High Gauge Set | eBay